In almost all cases, these occur during the breakdowns, the nonscheduled, non-routine maintenance tasks. The first step towards safety design should include a formal risk assessment. Every potential hazard or environmental influence must be considered. Once hazards are identified, they can be classified by certain criteria such as severity, frequency, and avoidance possibilities. This assessment should also include the coordination of the maintenance team and programmers so the end user has the knowledge of the machine and the safeguards.
This focuses on specific types of tasks required non-routine and routine and then outlines the risks associated. Safe guarding is a major concern for companies looking to save money and lives. Serious and fatal injuries have happened to mechanics and electricians where the design has failed in providing easy access to get work done safely and quickly without defeating the safe guarding.
Workspaces need to be clearly marked, so each of your workers knows what floor space is out of bounds when the robot is operating. A thorough understanding of all the safe guarding options and capabilities saves time and money. Safety system designers must be knowledgeable about proper installation and every intricacy of integration.
For example, distances must be carefully calculated so safety devices stop hazards before workers reach them. Protection on the Outside: Protective safety environment begins with the right fencing. There are many different choices for perimeter guarding. Determining which type of guarding to choose depends on the application. Sometimes it is necessary for both hard-guarding and light curtains to be used so they work seamlessly with the work cell.
Protection on the Inside : Internal protection is often necessary in a work cell such as motion sensing safety scanners , light curtains, or floor sensors can stop the robot whenever a worker crosses the barrier. Training is imperative for every specific robot and their programmers, operators, and maintainers to ensure the safety of all people and robots.
It is important to know the safe operating procedures and when to apply LOTO. A well-trained worker should know when and how to intervene safely and if a machine stops due to a fault or due to normal operation. Consistent refresher courses made available to the workers are also important to help re-iterate the importance of safety and to discuss the always advancing technological developments.
Poorly designed machinery and cells are significant risk factors for workers, especially those that perform maintenance. If a particular safeguard prevents the user from running the machine the way the want to, they will try to defeat that protection.
It is important then to make sure that all operators understand why safeguards are in place. But it is also critical to ensure that any protection does not end up being an obstacle to safe maintenance.
All safeguards need to be designed to allow easy access to relevant components with the necessary power. Robot cells must be designed with the human element in mind. Risk assessment can follow several forms. One of these is Task-Based Risk Assessment. OSHA recognizes TaBRa is an a methodology that focuses on the kinds of tasks that are required, routine and irregular, and the risks that are associated with those functions.
TaBRA is a fundamentally different form of risk assessment because it involves understanding the tasks of ALL workers and asking the right questions about them. Instead of approaching safeties and hazards from a top-down direction, which would include experts dictating hazards and safeties, TaBRA approaches risk management from the bottom up.
By understanding the perspective of the worker, and understanding what work has to be done and the real conditions it is done under, TaBRA can construct a realistic picture of Risk Assessment that shows the risk environment as it really is under day-to-day, real-world conditions. Training makes the difference on the floor.
Knowing safe operating procedures is of critical importance. Often, standards are created by a diverse group of industry interests to ensure the standards benefit everyone. Much of the work of robot safety standards organizations is involved in making international robot standards.
This is where robot safety standards begin to have a much larger impact on the global market. Robot safety standards are beneficial to the global robotics industry in many ways, which is why so many experts from various fields divert time and energy into developing effective standards. Every country has different robot safety standards.
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